If you decide to change wooden windows for plastic in your apartment, you need to consider the main points when choosing and buying windows. This will make it possible to get rid of the problems associated with the unfair attitude of suppliers that offer low-quality goods.
Necessary
knowledge of the features of building materials
Instructions
Step 1
Pay attention to the type of profile. It can be domestic or imported. It is preferable to dwell on imported manufacturers when choosing a profile for windows. Also, plastic profiles can be made from recycled materials, this significantly reduces their cost, but degrades the quality.
Step 2
Therefore, check with managers if recyclable materials were used in production. German technologies used in the production of windows guarantee that the profile of a plastic window can withstand temperature changes (from -50 to +50 degrees), as well as dynamic loads.
Step 3
Examine the appearance of the reinforcing profile, namely its cut, it must be at least 1.5 mm thick. Moreover, it must be made of galvanized steel. This allows the window to withstand dynamic loads such as gusts of wind and also guarantees resistance to corrosion. If the reinforcement profile is made of ferrous metal, it will rust, which can lead to red streaks on the window openings. All this must be taken into account when choosing a plastic profile for windows.
Step 4
Pay attention to the number of air chambers that are inside the plastic profile. There must be at least three of them. They should be both in the frame and in the sash of the window. This must also be taken into account when choosing a plastic profile for windows. Also keep in mind that leading window manufacturers use fittings made in Germany for them.
Step 5
Better not to purchase profiles with domestic fittings. The main part of a plastic window is a double-glazed window. A special list of requirements is imposed on him. There should be at least two air chambers in it, and it should be at least 32 millimeters thick. Glass brand for a double-glazed unit is mainly M1. It must have a heat-reflecting coating. This will make it possible to reduce heat loss to zero.
Step 6
Ask the manufacturer for a sample window so you can evaluate the cut. Also, the production and installation of windows must be certified.
